package snowforce.storage;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;

public class GraphEdgeIdStore
{
	private static Map<String, Set<String>>	store;
	private static GraphEdgeIdStore			instance	= null;

	private GraphEdgeIdStore()
	{
		store = new HashMap<String, Set<String>>();
	}

	public static synchronized Map<String, Set<String>> getStore()
	{
		if (instance == null) {
			instance = new GraphEdgeIdStore();
		}
		return store;
	}

}
